CN116120029B - Basalt fiber concrete with ultra-high mechanical property and preparation method and application thereof - Google Patents
Basalt fiber concrete with ultra-high mechanical property and preparation method and application thereof Download PDFInfo
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- CN116120029B CN116120029B CN202310013644.3A CN202310013644A CN116120029B CN 116120029 B CN116120029 B CN 116120029B CN 202310013644 A CN202310013644 A CN 202310013644A CN 116120029 B CN116120029 B CN 116120029B
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
- C04B28/142—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements
- C04B28/143—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements the synthetic calcium sulfate being phosphogypsum
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/38—Fibrous materials; Whiskers
- C04B14/46—Rock wool ; Ceramic or silicate fibres
- C04B14/4643—Silicates other than zircon
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
- C04B18/08—Flue dust, i.e. fly ash
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/023—Chemical treatment
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Inorganic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Artificial Filaments (AREA)
Abstract
The application discloses basalt fiber concrete with ultra-high mechanical properties, and relates to the technical field of concrete. The application adopts the fly ash, mineral powder, phosphogypsum and limestone as the raw materials of the cementing material, and carries out modification treatment on the fly ash, thereby replacing the traditional cement addition, improving the performance of the cementing material and laying a foundation for obviously improving the mechanical properties of basalt fiber concrete; meanwhile, the application also carries out modification treatment on the basalt fiber, further improves the mechanical property of the basalt fiber, ensures that the basalt fiber has better compatibility with the cementing material, and further improves the mechanical property of the basalt fiber concrete. The basalt fiber concrete with the ultra-high mechanical property has excellent service performance, and can meet engineering requirements on the mechanical property of the basalt fiber concrete in a complex service environment.
Description
Technical Field
The application relates to the technical field of concrete, in particular to basalt fiber concrete with ultra-high mechanical properties, and a preparation method and application thereof.
Background
The basalt fiber is one of four major fibers (carbon fiber, ultra-high molecular weight polyethylene, aramid fiber and basalt fiber) which are developed at present, has excellent performance, can meet the requirements of various fields such as traffic, construction, chemical industry, energy conservation, environmental protection, electronics, aviation and the like, has various excellent performances such as high strength, corrosion resistance, electrical insulation, high temperature resistance, ageing resistance and the like, has good environmental compatibility, does not produce secondary pollution, and is a green high-performance environment-friendly material.
At present, concrete widely used in the building field is mainly prepared by stirring sand and stone and cement, however, with the continuous development of urban construction, the performance of common concrete is more and more difficult to meet the construction requirement, higher requirements are put forward on the performance of building materials, and the concrete is required to have better mechanical properties such as higher building quality requirements and natural disaster resistance.
However, while current basalt fiber concretes have improved greatly in performance over current conventional concretes, basalt fiber concretes that provide ultra-high mechanical properties are an ongoing goal in the art.
Disclosure of Invention
The application aims to provide basalt fiber concrete with ultra-high mechanical properties, and a preparation method and application thereof, so as to solve the problems in the prior art and remarkably improve the mechanical properties of basalt fiber concrete.
In order to achieve the above object, the present application provides the following solutions:
the application provides basalt fiber concrete with ultra-high mechanical properties, which comprises the following raw materials in parts by mass:
5-6 parts of modified basalt fiber, 225-285 parts of cementing material, 550-680 parts of aggregate, 1-8 parts of water reducer, 25-45 parts of silica fume and 130-150 parts of water;
the cementing material is prepared by mixing phosphogypsum, mineral powder, limestone and modified fly ash according to a mass ratio of 35-40:40-55:5-11:5-8.
Further, the aggregate includes fine aggregate and coarse aggregate; the mass ratio of the fine aggregate to the coarse aggregate is 0.52-0.85:1.
Further, the modified basalt fiber is prepared by the following steps:
a. mixing a silane coupling agent, polyacrylamide and water, adding basalt fibers into the obtained mixed solution, reacting for 1.5-2 hours at 40-45 ℃, and then cleaning and drying;
b. adding basalt fiber treated in the step a into nano silicon dioxide ethyl acetate dispersion liquid, reacting for 0.5-2h at 55-65 ℃, filtering, and drying to obtain modified basalt fiber.
Further, in the step a, the mass ratio of the silane coupling agent, the polyacrylamide and the water is 0.15-0.2:0.4-0.5:10.
Further, the modified fly ash is prepared by the following steps:
dispersing the fly ash in ethanol, adding phenolic resin and a silane coupling agent, stirring and heating, carrying out reflux reaction, filtering, washing and drying to obtain the modified fly ash.
Further, the mass ratio of the fly ash to the phenolic resin to the silane coupling agent is 1:1.4-1.8:2.2-2.5.
Further, the reflux reaction time is 5-6h.
The application also provides a preparation method of the basalt fiber concrete with the ultra-high mechanical property, which comprises the following steps:
and mixing the raw materials according to the mass portion ratio to obtain the basalt fiber concrete with the ultra-high mechanical property.
The application further provides application of the basalt fiber concrete with the ultra-high mechanical property in the field of building engineering.
The application adopts the fly ash, the mineral powder, the phosphogypsum and the limestone as cementing material raw materials, and carries out modification treatment on the fly ash, thereby replacing the traditional cement addition, improving the performance of the cementing material and laying a foundation for remarkably improving the mechanical property of basalt fiber concrete.
According to the application, the basalt fiber is modified, so that the mechanical property of the basalt fiber is further improved, and the basalt fiber has better compatibility with the cementing material, so that the mechanical property of basalt fiber concrete is improved.
The application discloses the following technical effects:
the basalt fiber concrete with the ultra-high mechanical property has excellent service performance, and can meet engineering requirements on the mechanical property of the basalt fiber concrete in a complex service environment.
The preparation method of the concrete is simple and efficient, and has great popularization and application prospects in the field of building engineering.
Detailed Description
Various exemplary embodiments of the application will now be described in detail, which should not be considered as limiting the application, but rather as more detailed descriptions of certain aspects, features and embodiments of the application.
It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. In addition, for numerical ranges in this disclosure, it is understood that each intermediate value between the upper and lower limits of the ranges is also specifically disclosed. Every smaller range between any stated value or stated range, and any other stated value or intermediate value within the stated range, is also encompassed within the application. The upper and lower limits of these smaller ranges may independently be included or excluded in the range.
Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. Although only preferred methods and materials are described herein, any methods and materials similar or equivalent to those described herein can be used in the practice or testing of the present application. All documents mentioned in this specification are incorporated by reference for the purpose of disclosing and describing the methods and/or materials associated with the documents. In case of conflict with any incorporated document, the present specification will control.
It will be apparent to those skilled in the art that various modifications and variations can be made in the specific embodiments of the application described herein without departing from the scope or spirit of the application. Other embodiments will be apparent to those skilled in the art from consideration of the specification of the present application. The specification and examples of the present application are exemplary only.
As used herein, the terms "comprising," "including," "having," "containing," and the like are intended to be inclusive and mean an inclusion, but not limited to.
The "parts" in the present application are all parts by mass unless otherwise specified.
The length of basalt fiber used in the following examples of the application is 10-15mm, and the diameter of monofilament is 10-15 μm; the fly ash is first-grade fly ash; the water reducer is sodium tris (1-methylethyl) naphthalene sulfonate; the aggregate includes fine aggregate and coarse aggregate: the fine aggregate is sand, the fineness modulus is 2.3-3.1, and the apparent density is 2400-2600kg/m 3 Bulk density of 1400-1500kg/m 3 The method comprises the steps of carrying out a first treatment on the surface of the The coarse aggregate is crushed stone with the grain size of 5-10 mm.
Example 1
Basalt fiber concrete with ultra-high mechanical properties comprises the following raw materials in parts by mass:
5 parts of modified basalt fiber, 230 parts of cementing material, 560 parts of aggregate (coarse and fine aggregate: coarse aggregate mass ratio is 0.52:1), 2 parts of water reducer, 30 parts of silica fume and 130 parts of water;
the cementing material is prepared by mixing phosphogypsum, mineral powder, limestone and modified fly ash according to a mass ratio of 35:45:5:7; wherein, the modified fly ash is prepared by the following steps:
dispersing the fly ash in ethanol, adding phenolic resin and silane coupling agent KH570 according to the mass ratio of 1:1.4:2.2, stirring and heating, carrying out reflux reaction for 5h, filtering, washing and drying to obtain the modified phenolic resin.
Preparation of modified basalt fiber:
a. mixing a silane coupling agent, polyacrylamide and water according to a mass ratio of 0.15:0.5:10, adding basalt fibers into the obtained mixed solution, reacting for 2 hours at 40 ℃, and then cleaning and drying;
b. adding basalt fibers treated in the step a into nano silicon dioxide ethyl acetate dispersion liquid, reacting for 1h at 60 ℃, filtering and drying to obtain modified basalt fibers.
Preparing basalt fiber concrete with ultra-high mechanical properties:
and uniformly stirring the components according to the mass parts to obtain the basalt fiber concrete with the ultra-high mechanical property.
Performance test results: the compressive strength of the 28d concrete is 145.6MPa, and the compressive strength of the 56d concrete is 179.4MPa.
Example 2
Basalt fiber concrete with ultra-high mechanical properties comprises the following raw materials in parts by mass:
6 parts of modified basalt fiber, 250 parts of cementing material, 600 parts of aggregate (the mass ratio of coarse and fine aggregate to coarse aggregate is 0.6:1), 6 parts of water reducer, 30 parts of silica fume and 145 parts of water;
the cementing material is prepared by mixing phosphogypsum, mineral powder, limestone and modified fly ash according to a mass ratio of 38:48:11:7; wherein, the modified fly ash is prepared by the following steps:
dispersing the fly ash in ethanol, adding phenolic resin and silane coupling agent KH570, the mass ratio of the fly ash to the phenolic resin to the silane coupling agent KH570 is 1:1.5:2.3, stirring and heating, reflux reaction for 5.5h, filtering, washing and drying.
Preparation of modified basalt fiber:
a. the method comprises the following steps of (1) mixing a silane coupling agent, polyacrylamide and water according to a mass ratio of 0.2: mixing at a ratio of 0.45:10, adding basalt fibers into the obtained mixed solution, reacting for 1.6 hours at 42 ℃, and then cleaning and drying;
b. adding basalt fiber treated in the step a into nano silicon dioxide ethyl acetate dispersion liquid, reacting for 1h at 55 ℃, filtering and drying to obtain modified basalt fiber.
Preparing basalt fiber concrete with ultra-high mechanical properties:
and uniformly stirring the components according to the mass parts to obtain the basalt fiber concrete with the ultra-high mechanical property.
Performance test results: 28d concrete compressive strength 156.3MPa,56d concrete compressive strength 180.2MPa.
Example 3
Basalt fiber concrete with ultra-high mechanical properties comprises the following raw materials in parts by mass:
6 parts of modified basalt fiber, 280 parts of cementing material, 650 parts of aggregate (coarse and fine aggregate: coarse aggregate mass ratio is 0.85:1), 8 parts of water reducer, 25 parts of silica fume and 140 parts of water;
the cementing material is prepared by mixing phosphogypsum, mineral powder, limestone and modified fly ash according to a mass ratio of 38:45:9:6; wherein, the modified fly ash is prepared by the following steps:
dispersing the fly ash in ethanol, adding phenolic resin and silane coupling agent KH570 according to the mass ratio of 1:1.5:2.3, stirring and heating, carrying out reflux reaction for 5h, filtering, washing and drying to obtain the modified phenolic resin.
Preparation of modified basalt fiber:
a. the preparation method comprises the following steps of (1) mixing a silane coupling agent, polyacrylamide and water according to a mass ratio of 0.18: mixing at a ratio of 0.45:10, adding basalt fibers into the obtained mixed solution, reacting for 1.8 hours at 43 ℃, and then cleaning and drying;
b. adding basalt fiber treated in the step a into nano silicon dioxide ethyl acetate dispersion liquid, reacting for 0.8h at 60 ℃, filtering and drying to obtain modified basalt fiber.
Preparing basalt fiber concrete with ultra-high mechanical properties:
and uniformly stirring the components according to the mass parts to obtain the basalt fiber concrete with the ultra-high mechanical property.
Performance test results: the compressive strength of the 28d concrete is 151.2MPa, and the compressive strength of the 56d concrete is 180.2MPa.
Comparative example 1
The only difference from example 1 is that the cement was replaced with an equal mass of cement (Portland cement PO 42.5).
Performance test results: the compressive strength of the 28d concrete is 50.9MPa, and the compressive strength of the 56d concrete is 55.7MPa.
Comparative example 2
The difference from example 1 is only that basalt fiber is not modified, and basalt fiber is directly used as a concrete raw material.
Performance test results: the compressive strength of the 28d concrete is 54.2MPa, and the compressive strength of the 56d concrete is 57.4MPa.
Comparative example 3
The difference from example 1 is only that the cementing material is replaced by cement of equal quality, and basalt fiber is directly used as concrete raw material without modification treatment.
Performance test results: the compressive strength of the 28d concrete is 40.4MPa, and the compressive strength of the 56d concrete is 51.3MPa.
The above embodiments are only illustrative of the preferred embodiments of the present application and are not intended to limit the scope of the present application, and various modifications and improvements made by those skilled in the art to the technical solutions of the present application should fall within the protection scope defined by the claims of the present application without departing from the design spirit of the present application.
Claims (5)
1. The basalt fiber concrete with the ultra-high mechanical property is characterized by comprising the following raw materials in parts by mass:
5-6 parts of modified basalt fiber, 225-285 parts of cementing material, 550-680 parts of aggregate, 1-8 parts of water reducer, 25-45 parts of silica fume and 130-150 parts of water;
the cementing material is prepared by mixing phosphogypsum, mineral powder, limestone and modified fly ash according to a mass ratio of 35-40:40-55:5-11:5-8;
the modified basalt fiber is prepared by the following steps:
a. mixing a silane coupling agent, polyacrylamide and water, adding basalt fibers into the obtained mixed solution, reacting for 1.5-2 hours at 40-45 ℃, and then cleaning and drying;
b. adding basalt fibers treated in the step a into nano silicon dioxide ethyl acetate dispersion liquid, reacting for 0.5-2h at 55-65 ℃, filtering, and drying to obtain modified basalt fibers;
in the step a, the mass ratio of the silane coupling agent to the polyacrylamide to the water is 0.15-0.2:0.4-0.5:10;
the modified fly ash is prepared by the following steps:
dispersing the fly ash in ethanol, adding phenolic resin and a silane coupling agent, stirring and heating, carrying out reflux reaction, filtering, washing and drying to obtain the modified fly ash;
the mass ratio of the fly ash to the phenolic resin to the silane coupling agent is 1:1.4-1.8:2.2-2.5.
2. The ultra-high mechanical property basalt fiber concrete of claim 1, wherein said aggregate comprises fine aggregate and coarse aggregate; the mass ratio of the fine aggregate to the coarse aggregate is 0.52-0.85:1.
3. The ultra-high mechanical property basalt fiber concrete according to claim 1, wherein the reflow reaction time is 5-6 hours.
4. A method for preparing the basalt fiber concrete with ultra-high mechanical property according to any one of claims 1 to 3, comprising the following steps:
and mixing the raw materials according to the mass portion ratio to obtain the basalt fiber concrete with the ultra-high mechanical property.
5. Use of the ultra-high mechanical property basalt fiber concrete according to any one of claims 1 to 3 in the field of construction engineering.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310013644.3A CN116120029B (en) | 2023-01-05 | 2023-01-05 | Basalt fiber concrete with ultra-high mechanical property and preparation method and application thereof |
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| CN202310013644.3A CN116120029B (en) | 2023-01-05 | 2023-01-05 | Basalt fiber concrete with ultra-high mechanical property and preparation method and application thereof |
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| CN116120029B true CN116120029B (en) | 2023-08-11 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105541209A (en) * | 2015-12-21 | 2016-05-04 | 中民筑友有限公司 | Basalt fiber reinforced cement based material and preparation method therefor |
| CN109942181A (en) * | 2019-03-19 | 2019-06-28 | 宁夏宝塔石化科技实业发展有限公司 | A kind of preparation method of flyash modified imitative basalt fibre |
| CN110563358A (en) * | 2019-09-25 | 2019-12-13 | 扬州工业职业技术学院 | Application of modified fly ash as cementing material to preparation of light foam concrete instead of cement |
| CN113173749A (en) * | 2021-04-23 | 2021-07-27 | 中国地质大学（北京） | Modified basalt fiber-containing cementing material and preparation method thereof |
| CN113185212A (en) * | 2020-09-23 | 2021-07-30 | 西安建筑科技大学 | High-toughness high-cohesiveness C70-strength fiber concrete and preparation method thereof |
| CN114409339A (en) * | 2022-02-10 | 2022-04-29 | 广州盛门新材料科技有限公司 | High-strength anti-cracking concrete and preparation method thereof |
-
2023
- 2023-01-05 CN CN202310013644.3A patent/CN116120029B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105541209A (en) * | 2015-12-21 | 2016-05-04 | 中民筑友有限公司 | Basalt fiber reinforced cement based material and preparation method therefor |
| CN109942181A (en) * | 2019-03-19 | 2019-06-28 | 宁夏宝塔石化科技实业发展有限公司 | A kind of preparation method of flyash modified imitative basalt fibre |
| CN110563358A (en) * | 2019-09-25 | 2019-12-13 | 扬州工业职业技术学院 | Application of modified fly ash as cementing material to preparation of light foam concrete instead of cement |
| CN113185212A (en) * | 2020-09-23 | 2021-07-30 | 西安建筑科技大学 | High-toughness high-cohesiveness C70-strength fiber concrete and preparation method thereof |
| CN113173749A (en) * | 2021-04-23 | 2021-07-27 | 中国地质大学（北京） | Modified basalt fiber-containing cementing material and preparation method thereof |
| CN114409339A (en) * | 2022-02-10 | 2022-04-29 | 广州盛门新材料科技有限公司 | High-strength anti-cracking concrete and preparation method thereof |
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